windows 10 pip升级问题求助
C:\Users\zh1>python -m pip install --upgrade pip
Collecting pip
Using cached https://files.pythonhosted.org/packages/d8/f3/413bab4ff08e1fc4828dfc59996d721917df8e8583ea85385d51125dceff/pip-19.0.3-py2.py3-none-any.whl
Installing collected packages: pip
Found existing installation: pip 18.1
Uninstalling pip-18.1:
Successfully uninstalled pip-18.1
Rolling back uninstall of pip
Exception:
Traceback (most recent call last):
File "C:\Users\zh1\AppData\Roaming\Python\Python36\site-packages\pip\_internal\cli\base_command.py", line 143, in main
status = self.run(options, args)
File "C:\Users\zh1\AppData\Roaming\Python\Python36\site-packages\pip\_internal\commands\install.py", line 366, in run
use_user_site=options.use_user_site,
File "C:\Users\zh1\AppData\Roaming\Python\Python36\site-packages\pip\_internal\req\__init__.py", line 49, in install_given_reqs
**kwargs
File "C:\Users\zh1\AppData\Roaming\Python\Python36\site-packages\pip\_internal\req\req_install.py", line 760, in install
use_user_site=use_user_site, pycompile=pycompile,
File "C:\Users\zh1\AppData\Roaming\Python\Python36\site-packages\pip\_internal\req\req_install.py", line 382, in move_wheel_files
warn_script_location=warn_script_location,
File "C:\Users\zh1\AppData\Roaming\Python\Python36\site-packages\pip\_internal\wheel.py", line 441, in move_wheel_files
generated.extend(maker.make(spec))
File "C:\Users\zh1\AppData\Roaming\Python\Python36\site-packages\pip\_vendor\distlib\scripts.py", line 403, in make
self._make_script(entry, filenames, options=options)
File "C:\Users\zh1\AppData\Roaming\Python\Python36\site-packages\pip\_vendor\distlib\scripts.py", line 307, in _make_script
self._write_script(scriptnames, shebang, script, filenames, ext)
File "C:\Users\zh1\AppData\Roaming\Python\Python36\site-packages\pip\_vendor\distlib\scripts.py", line 243, in _write_script
launcher = self._get_launcher('t')
File "C:\Users\zh1\AppData\Roaming\Python\Python36\site-packages\pip\_vendor\distlib\scripts.py", line 382, in _get_launcher
result = finder(distlib_package).find(name).bytes
AttributeError: 'NoneType' object has no attribute 'bytes'
You are using pip version 18.1, however version 19.0.3 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.
求帮忙解决~